Troll dolls, originally known as Leprocauns and also known as Dam dolls, Wishniks, Treasure Trolls, and Norfins, became one of America's biggest toy fads beginning in the autumn of 1963, and lasting throughout 1965. With their brightly colored hair and cute faces, they were featured in both Life Magazine and Time Magazine in articles which commented on the "good luck" they would bring to their owners.
Trolls became fads again in brief periods throughout the 1970s, 1980s and 1990s, with as many as ten different manufacturers (such as Russ Berrie, Jakks Pacific, Applause, Hasbro, Mattel, Nyform, Trollkins and Ace Novelty) creating them. _Wikipedia
In 1960s Ohio where I grew up and collected Troll or Dam Dolls as we called them...the only doll considered authentic and "cool" was the Dam doll. The true Dam doll had the word "dam" stamped on the back, between the shoulders. Imposters were many. The true original Dam doll only came with brown/amber eyes. Imposters had other eye colors as well. The quality was superior in the true Dam doll. Originals came with sheep wool hair and glass eyes.